Graphical user interface for a display screen or portion thereof



The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

FIG. 1 is a front view of a graphical user interface for a display screen or portion thereof;

FIG. 2 is a front view of a second embodiment thereof;

FIG. 3 is a front view of a third embodiment thereof; and,

FIG. 4 is a front view of a fourth embodiment thereof.

The broken line showing of a display screen in all views forms no part of the claimed design.

The AT&T trademark in the upper left corner of the Figures is a registered trademark of AT&T Intellectual Property II, L.P. Trademarks are the property of their respective owners. 

The ornamental design for a graphical user interface for a display screen or a portion thereof, as shown and described. 